Polymer-encapsulated pigment with bridging layer

A method of making a polymer-encapsulated pigment, comprising:

• a) dispersing a pigment in a liquid;
• b) dissolving a bridging component in the liquid to form a solubilized bridging component;
• c) changing a property of the liquid to thereby cause at least a portion of the solubilized bridging component to become a desolubilized bridging component deposited on a surface of the pigment in the form of a bridging layer;
• and
• d) attaching or depositing a polymer to the bridging layer.

An ink set, comprising:

• a) a first ink-jet ink, comprising:
• i) a first aqueous liquid vehicle, and
• ii) a first polymer-encapsulated pigment colorant suspended in the first liquid vehicle, said first polymer-encapsulated pigment colorant including a first pigment core, a first bridging layer deposited on a surface of the pigment core, and a first polymer encapsulation layer attached or deposited on the first bridging layer;
• and
• b) a second ink-jet ink, comprising:
• i) a second aqueous liquid vehicle, and
• ii) a second polymer-encapsulated pigment colorant suspended in the second liquid vehicle, said second polymer-encapsulated pigment colorant including a second pigment core, a second bridging layer deposited on a surface of the second pigment core, and a second polymer encapsulation layer attached or deposited on the bridging layer,
• wherein the first pigment core and the second pigment core are different pigment colorants, the first bridging layer and the second bridging layer are formed of the same material, and the first polymer encapsulation layer and the second polymer encapsulation layer are formed of the same material, and
• wherein i) the first and second bridging layers are formed from a respective first and second bridging component that are soluble in solution, and come out of solution and become deposited on the first and second pigment cores, respectively, upon raising the pH or raising the temperature;
• or wherein ii) the first and second bridging layers are formed from a respective first and second bridging component that are soluble in solution, and come out of solution and become deposited on the first and second pigment cores, respectively, upon lowering the pH or lowering the temperature.